Saeyang, R., and Nissapa, A. “Trade competitiveness in the global market: An analysis of four palm oil products from Indonesia, Malaysia and Thailand”. International Journal of Agricultural Technology 17, no. 3 (May 15, 2021): 1077–1094. accessed July 31, 2025. https://li04.tci-thaijo.org/index.php/IJAT/article/view/6096.